eclipse - 如何将Vaadin 7.3.9集成到Eclipse中的Grails项目中？

Question

Vaadin集成到Eclipse中的Grails项目中时遇到了一些麻烦。

我正在使用Spring Tool Suite(版本3.6.3)和Grails(版本2.4.4)提供的Eclipse(版本4.4 Luna)。

我创建一个Grails项目:

文件->新建-> Grails项目

我正在阅读Vaadin Cookbook一书，作者说，为了在Grails项目中使用Vaadin，必须安装Grails的Vaadin插件。作者说应该:

打开grails控制台并输入:grails> install-plugin vaadin

但是，自Grails 2.4.3起不推荐使用此插件，并且必须将插件添加到BuildConfig.groovy文件中(基于本教程的其中一位合著者-> https://vaadin.com/wiki/-/wiki/Main/Vaadin%20on%20Grails%20-%20Create%20project%20in%20IntelliJ%20IDEA(在本教程的基础上使用IntelliJIDEA链接的URL，而不是Eclipse)):

// BuildConfig.groovy
// ...
grails.project.dependency.resolution = {
     //...
      plugins {
          //...
          compile ":vaadin:7.3.9"
          //...
      }
}

但是那我该怎么办？他们在书中说grails-app/vaadin文件夹必须标记为源文件夹(Build Path -> Use as source folder)，但是我的Grails项目中没有这样的文件夹。

另外，从上面链接了InlliJIDEA的教程中，作者说:

现在，我尝试编辑UrlMappings.groovy文件以删除所有映射:

class UrlMappings {

    static mappings = {

    }
}

然后，当我运行run-app命令时，出现以下异常:

|Running Grails application
objc[42370]: Class JavaLaunchHelper is implemented in both /Library/Java/JavaVirtualMachines/jdk1.8.0_25.jdk/Contents/Home/bin/java and /Library/Java/JavaVirtualMachines/jdk1.8.0_25.jdk/Contents/Home/jre/lib/libinstrument.dylib. One of the two will be used. Which one is undefined.
| Error 2015-01-30 11:33:56,213 [localhost-startStop-1] ERROR context.GrailsContextLoaderListener  - Error initializing the application: Error creating bean with name 'transactionManagerPostProcessor': Initialization of bean failed; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'transactionManager': Cannot resolve reference to bean 'sessionFactory' while setting bean property 'sessionFactory'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sessionFactory': Invocation of init method failed; nested exception is org.hibernate.cfg.beanvalidation.IntegrationException: Error activating Bean Validation integration
Message: Error creating bean with name 'transactionManagerPostProcessor': Initialization of bean failed; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'transactionManager': Cannot resolve reference to bean 'sessionFactory' while setting bean property 'sessionFactory'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sessionFactory': Invocation of init method failed; nested exception is org.hibernate.cfg.beanvalidation.IntegrationException: Error activating Bean Validation integration
    Line | Method
->>  266 | run       in java.util.concurrent.FutureTask
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 
|   1142 | runWorker in java.util.concurrent.ThreadPoolExecutor
|    617 | run . . . in java.util.concurrent.ThreadPoolExecutor$Worker
^    745 | run       in java.lang.Thread
Caused by BeanCreationException: Error creating bean with name 'transactionManager': Cannot resolve reference to bean 'sessionFactory' while setting bean property 'sessionFactory'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sessionFactory': Invocation of init method failed; nested exception is org.hibernate.cfg.beanvalidation.IntegrationException: Error activating Bean Validation integration
->>  266 | run       in java.util.concurrent.FutureTask
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 
|   1142 | runWorker in java.util.concurrent.ThreadPoolExecutor
|    617 | run . . . in java.util.concurrent.ThreadPoolExecutor$Worker
^    745 | run       in java.lang.Thread
Caused by BeanCreationException: Error creating bean with name 'sessionFactory': Invocation of init method failed; nested exception is org.hibernate.cfg.beanvalidation.IntegrationException: Error activating Bean Validation integration
->>  266 | run       in java.util.concurrent.FutureTask
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 
|   1142 | runWorker in java.util.concurrent.ThreadPoolExecutor
|    617 | run . . . in java.util.concurrent.ThreadPoolExecutor$Worker
^    745 | run       in java.lang.Thread
Caused by IntegrationException: Error activating Bean Validation integration
->>  266 | run       in java.util.concurrent.FutureTask
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 
|   1142 | runWorker in java.util.concurrent.ThreadPoolExecutor
|    617 | run . . . in java.util.concurrent.ThreadPoolExecutor$Worker
^    745 | run       in java.lang.Thread
Caused by NoClassDefFoundError: javax/validation/ParameterNameProvider
->>  760 | defineClass in java.lang.ClassLoader
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 
|    142 | defineClass in java.security.SecureClassLoader
|    455 | defineClass in java.net.URLClassLoader
|     73 | access$100 in     ''
|    367 | run . . . in java.net.URLClassLoader$1
|    361 | run       in     ''
|    360 | findClass in java.net.URLClassLoader
|    424 | loadClass in java.lang.ClassLoader
|    269 | configure in javax.validation.Validation$GenericBootstrapImpl
|    111 | buildDefaultValidatorFactory in javax.validation.Validation
|    266 | run . . . in java.util.concurrent.FutureTask
|   1142 | runWorker in java.util.concurrent.ThreadPoolExecutor
|    617 | run . . . in java.util.concurrent.ThreadPoolExecutor$Worker
^    745 | run       in java.lang.Thread
Caused by ClassNotFoundException: javax.validation.ParameterNameProvider
->>  372 | run       in java.net.URLClassLoader$1
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 
|    361 | run       in     ''
|    360 | findClass in java.net.URLClassLoader
|    424 | loadClass in java.lang.ClassLoader
|    760 | defineClass in     ''
|    142 | defineClass in java.security.SecureClassLoader
|    455 | defineClass in java.net.URLClassLoader
|     73 | access$100 in     ''
|    367 | run . . . in java.net.URLClassLoader$1
|    361 | run       in     ''
|    360 | findClass in java.net.URLClassLoader
|    424 | loadClass in java.lang.ClassLoader
|    269 | configure in javax.validation.Validation$GenericBootstrapImpl
|    111 | buildDefaultValidatorFactory in javax.validation.Validation
|    266 | run . . . in java.util.concurrent.FutureTask
|   1142 | runWorker in java.util.concurrent.ThreadPoolExecutor
|    617 | run . . . in java.util.concurrent.ThreadPoolExecutor$Worker
^    745 | run       in java.lang.Thread
Error |
Forked Grails VM exited with error
|Server running. Browse to http://localhost:8080/vaadin-in-grails

它最后显示“服务器正在运行”，但这不是正确的，并且没有根据需要创建grails-app/vaadin文件夹。

我没有找到涉及该主题的其他教程(特别是我正在搜索我链接的IntelliJIDEA教程的Eclipse版本，但没有找到)。

因此，据我所知，这本书涵盖的是Grails的较旧版本，其中通过install-plugin不推荐使用的命令安装了插件，但我无法使用它，并且由于尝试使用compile ":vaadin:7.3.9"指令未成功，我在问某人在这里。

如何解决此问题并开始使用Grails / Vaadin进行编程？

Answer 1

不要使用install-plugin方法。

将其放在BuildConfig.groovy的“插件”部分中:

 compile ":vaadin:7.4.1"

根据我对插件作者的了解，较新版本的Vaadin / Grails插件不再创建grails-app / vaadin目录。相反，现在应该将vaadin代码放在​​典型的src / groovy或src / java文件夹中。